Name: Alleles and Genetic Inheritance
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Question 1 of 13

Question 1
Which process is responsible for the production of gametes?
- Meiosis
- Mitosis
- Cytokinesis
- Osmosis
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Question 2 of 13

Question 2
During meiosis, how many daughter cells are produced?
- daughter cells
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Question 3 of 13

Question 3
Choose the correct statement about gametes
- Gametes are haploid cells (have half the number of chromosomes) and they are genetically distinct
- Gametes are haploid cells (have half the number of chromosomes) and they are genetically identical
- Gametes are diploid cells (have the full number of chromosomes) and they are genetically distinct
- Gametes are diploid cells (have half the number of chromosomes) and they are genetically identical
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Question 4 of 13

Question 4
Which of the following is responsible for the variation between individuals in hair colour?
- Alleles
- Zygotes
- DNA inherited from the father only
- DNA inherited from the mother only
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Question 5 of 13

Question 5
Use one of the following words to fill in the blanks:
Alleles, colours, sizes
- Complete the sentence: inheritance of physical characteristics is due to different or versions of genes.
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Question 6 of 13

Question 6
Double, Single, Multiple, No, Exceptional
- Complete the sentence: some characteristics are the result of gene inheritance but most are the result of genes.
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Question 7 of 13

Question 7
If two different alleles are present, which will decide the inherited characteristic for that gene?
- The dominant allele
- The recessive allele
- It is a random process
- For males – recessive, for females – dominant
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Question 8 of 13

Question 8
Drag and drop to match the term and description
- Homozygous
- Heterozygous
- Both alleles for one gene are the same
- Both alleles for one gene are different
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Question 9 of 13

Question 9
In the punnet square, a represents the allele for red hair. This allele is recessive. Use the punnet square to determine what percentage of offspring will have red hair.
- 1 out of 4
- 2 out of 4
- 3 out of 4
- 4 out of 4
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Question 10 of 13

Question 10
Choose the correct set of sex chromosomes to fill in this genetic diagram (genetic cross).
- XX, XY XX, XY
- XX, XX XX, XY
- XX, XY XX, XX
- XX, XX XY, XX
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Question 11 of 13

Question 11
Cystic fibrosis is an inherited disease caused by a recessive allele. Use the genetic diagram (genetic cross) to determine the probability that an individual has the cystic fibrosis where F = normal allele and f = cystic fibrosis allele.
- 0.25 or 25%
- 0.5 or 50%
- 0.75 or 75%
- 1 or 100%
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Question 12 of 13

Question 12
The family pedigree diagram below shows a family with some individuals who suffer from cystic fibrosis – a disease caused by a recessive allele. It also shows some individuals who are carriers but do not have the disease and individuals who are neither carriers nor have the disease.

If James meets a woman named Ashley who is a carrier and they have a son, what is the probability that their son would have cystic fibrosis?
- %
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Question 13 of 13

Question 13
The family pedigree diagram below shows a family with some individuals that suffer from cystic fibrosis – a disease caused by a recessive allele. It also shows some individuals who are carriers but do not have the disease, and individuals who are neither carriers nor have the disease.

Calculate the probability of Ellie and David’s daughter having cystic fibrosis.
- %
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